Answered

beatles develop margins expressing dark color while genes for light color become less common over the generation of beetles what theme of life is being in this?
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HereForSomething1286viz

Answer:

It is because of the environmental pollution of our places. Because the black smokes coming from the factories is affecting the beatles. Also the reason why they change color is because they pick a common color in their current generation and that color is black created by factories.

Explanation:

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